Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hang luan » tang luan, dung luan
cham luc » cham soc, nhan luc, cham cuu
luan cua » quan cua, lua cua, luat cua
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hang » van hang, va nang, va lang
bo sach » co sach, hoc sach
so sach » so sanh, co sach, hoc sach
ma hoi » mai hoi, ma hoa, me hoi
y nang » ky nang, ly nang, v nang
luc va » duc va, tuc va, loc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (bo sach)) y nang ((ma hoi) or (xa hoi)). hieu va cham luc va hang luan cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (bo sach)) y nang ((ma hoi) OR (xa hoi)). hieu va cham luc va hang luan cua triet.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (bo sach)) y nang ((ma hoi) or (xa hoi)). hieu va cham luc va hang luan cua triet*.